56 HELIX §. 4 0. 



165. H. subrugata Pfr. 



T. subperforata, depresso-turbinata , tenuis, distanter sub-, 

 rugata, pellucida, pallide cornea; spira breviter conoidea, 

 acutiuscula; anfr. 57^—6 planiusculi, ultimus carinatus, basi 

 convexiusculus, laevigatus; apertura diagonalis, subangulato- 

 lunaris; perist. rectum, acutuin, margine columellari superne 

 vix reflexiusculo. — Diam. maj.. 13, min. iiy^, alt. 6^2 niill. 

 (Coll. Nr. 73.) 



Helix subrugata Pfr. m Proc'. Zool. Soc. 1851. Jiil. 



— — Chemn. ed. II. Helix N. 1056. t. 156. f. 9. 10. 

 Habitat ad Clarence River, New-South-Wales. 



166. Ibuensis Pfr Mon. I. p. 51. 



167. H. Mauritiana Pfr. 



T. subperforata, conoideo-semiglobosa, solida , superne 

 ruditer arcuato-rugosa , opaca, unicolor saturate brunnea; spira 

 convexo-conoidea, apice obtusiuscula; sutura leviter impressa; 

 anfr, 6 vix convexiusculi, lente accrescentes , ultimus acute 

 carinatus (carina filari, pallida), basi convexiusculus, radiato- 

 striatus, liiieis spiralibus cdnfertissimis decussatus; apertura 

 diagonnlis, subsecuriformis; perist. simplex, acutum, margine 

 bas.ali recedente, leviter arcuato, coluinellari calloso-incrassato, 

 subdentiformi. — Diam. maj. \ 6, min. \ 4, alt. 8V2 mill. (Coll. Nr.74.) 

 Helix Mauritiana Pfr. m Proc. Zool. Soc. 1851. 



— — Reeve Conch. ic. N. 189. t. 42. 



— — Chemn. ed. II. Helix N. 964. t. 147. f. 1. 2. 

 Habitat in montibus ad Black-River insulae Mauritii. 



168. H. Rawsonis Barclay. 



T. perforata, conoideo-Ienticularis, solidula, superne costata, 

 subdiaphana, unicolor fusco- vel virenti-cornea vel fascia 1 

 angusta rufa supra carinam ornata ; spira breviter conoidea, 

 acutiuscula; sutura impressa, denticulata; anfr. 6 convexius- 

 culi, ultimus non descendens, medio acute carinatus, infra ca- 

 rinam late pallidefasciatus, inflatus; apertura parum obliqua, 

 angulato-lunaris ; perist. simplex, rectum, marginibus remotis, 

 supero brevi, antrorsum subdilatato, basali arcuato, ad per- 

 forationem subcalloso, reflexiusculo. — Diam. maj. 15, rain. 

 13, alt. 8 mill. (Mus. Guming.) 



Helix Rawsonis Barcl. mss. in Mus. Cuming. 



— — Reeve Conch. ic. N. 199. t. 43. 



_ _ Chem7i. ed. II. Helix N. 965. t. 147. f. .3. 4. 



Ilabitat in sylvis insulae Mauritii. 



